Study of the Effect of Al2o3&B4c Particles Reinforcement on Some Physical and Mechanical Properties for Aluminum Alloy 6063 by Powder Metallurgy Technique

Abstract

Powder metallurgy technique utilized in samples preparing. Samples were compacted by using cold uniaxial pressing then followed by sintering process at 600 oC under inert gas. Results showed improving in (Brinell Hardness, wear resistance & compression strength) and increasing in (density, porosity & water absorption). Brinell Hardness increasing (106. – 114.7), compression strength increasing (35.1 – 40.8) N/mm2 and decrease wear rate (6.6*exp(-8) – 4.22*exp(-8)) g/cm at time 30 min. with (0 – 20)% Al2O3&B4C. While increase apparent density (2.76 – 2.83) g/cm3, Bulk Density increase (2.71-2.82) g/cm3 apparent porosity decrease (1.88 – 0.193) % and water absorption decrease (0.699 – 0.068) % at (0 – 20) % Al2O3&B4C.